End stop for slide fasteners



Jan. 25, 1949. cARLlLE 2,460,124

END STOP FOR SLIDE; FASTENERS Filed D80. 18, 1944 INVENTOR ALFRED ECARLILE.

ATTZRNEY Patented Jan. 25, 1949 UNITED STATES PATENT' orrlcr:

END STOP FOR SLIDE FASTENERS Ali'red E. Oarlile, Great Neck, N. Y.,assia'nor to Talon, Inc., a corporation oi Pennsylvania ApplicationDecember 18, 1944, Serial No. 568,656

4 Claims. (Cl. 24-205.11)

This invention relates to slide particularly, to an improved end stoptherefor.

In slide fasteners, there is generally provided end stops for limitingthe movement of the slider along the fastener stringers. One such stop,commonly known as a bottom stop, is usually emfasteners and,

ploycd at the bottom end of the fastener for limiting the downward oropening movement of the slider, and usually, a pair of stops, commonlyknown as top stops, are positioned at the upper end of the series offastener elements on each of the stringers for limiting the upward orclosing movement of the slider. L

Various types of top stops have been heretofore suggested and used butfor one reason, or another, they have not been entirely satisfactory.While some of these top stops effectively limited the movement or theslider, they would tend to jam or lock accidentally in the sliderchannel and this, of course, was objectionable in that the fastenercould not be opened without difliculty. Other stops were thickand bulkyin their construction and did not enter the slider channel, as isdesirable, so as to permit a full closure of the fastener. Also, some ofthese stops were expensive to fabricate and difflcult to apply to thefastener stringers without the use of expensive tools and equipment.Others of these stops did not securely grip the edge of the fastenerstringer and at times, would slip therealong or become entirelydisplaced therefrom, thereby defeating the purpose for which they wereintended.

Accordingly, it is one of the objects of the present invention toprovide an improved end stop which enters the slider channel far enoughto permit substantial closure of the fastener, but which is so designedand constructed that it will not jam in or catch on the slider.

It is another object of the invention to provide an improved end stopwhich is simple and inexpensive in its construction and one which may beeasily and conveniently fabricated and applied to the stringers, and atthe same time, a stop which is effective in its use.

It is a further object of this invention to provide an improved end stopfor slide fasteners which will securely grip the edge of the fastener Istringers thereby eliminating any danger of slippage along ordisplacement from the stringers.

It is still another object of the present invention to provide animproved top stop blank which can be easily and inexpensively fabricatedso as to provide a top stop which can be conveniently applied to thefastener stringers.

Various other objects and advantages of this 2 invention will be moreapparent in the course of the following specification, and will beparticularly pointed out in the appended claims.

In the accompanying drawings, there is shown for the purpose ofillustration, one embodiment which my invention may assume in practice.

In these drawings:

Fig. 1 is a plan view of a slide fastener havin the end stops of myinvention incorporated therewith;

Fig. 2 is a sectional view taken on line 2-2 of i 1;

Fig. 3 is a plan view of the slide fastener shown in Fig. 1 with the topwing of the slider removed showing how my improved end stops act tolimit the movement of the slider;

Fig. 4 is a plan view or a blank from which my end stop is formed;

Fig. 5 is an end view showing how the blank of in a well-known manner.Such a slider consists. v

generally of spaced upper and lower wings having inwardly extending sideor marginal flange portions 5 connected at one end by a neck portion 1,so as to provide substantially a Y-shaped channeled body member. On thetop wing of the slider, there is arranged a longitudinally extending lug8 to which a pull member a is pivotally attached to manipulate theslider.

There is attached to the beaded edges 3 of each of the stringer tapes 4,adjacent the endmost fastener element of the series of fastener elements2 thereof, the improved end stop ill of the present invention. As moreclearly shown in Figs. 5 and 6 of the drawings, this end stop consistsof a unitary piece of sheet metal having a pair of spaced-apartoppositely disposed substantially circular portions l2 connected by anarcuated central portion [3, so as to provide a substantially U-shapedtape receiving channel H between the portions l2. In each of thecircular portions l2, there is arranged substantially concentrictherewith, and in alignment with each other preferably a circular holeII for a Purpose hereinafter to be described.

This end stop member is formed preferably from a sheet metal blankhaving substantially the configuration of the figure eight, as shown inFig. 4 of the drawings. This blank is bent upon itself at the centralportion I3 to substantially a U-shape so that the end portions I! aredisposed directly opposite each other ready for attachment to thestringers. In applying the end stop to a fastener stringer, the end stopis positioned on the beaded edge I of the stringer with the beaded edge3 disposed in the channel I of the stop so that the portions 12 aredisposed on opposite sides of the stringer so as to straddle the beadedstringer edge. After the stop has been positioned on the edge of thestringer in such a manner, the circular portions ii are forced towardeach other into engagement with the beaded edge 3 of the stringer, so assecurely to grip the same. Afterthe opp ed portions H are forced towardeach other into clamping engagement with the beaded edge 3, it will beseen that that portion of the beaded edge portion on each side of thetape defined by the holes 15 in the circular portions 12, will beexposed and extend into the holes as shown in Fig. 2 of the drawings.This is one of the most important aspects of the present invention forthe reason that additional gripping power is obtained by providing suchholes in the end stop. In other words, that portion of the beaded edge 3in the holes I! will puff out or be forced into the .holes I5, due tothe compressive gripping or clamping force of the portions II, with theedge portions of the holes cooperating with the pulled out beaded edgeportions to aid in preventing movement of the end stop along thestringer and to prevent displacement of the end stop therefrom. It willbe seen, as shown in Fig. 3 of the drawings, that the end stopcooperates with the neck.'| and the flanges 6 to prevent movement of theend stop through the channel of the slider. thereby limiting the upwardor closing movement of the slider along the stringers.

As a result of my invention, it will be seen that there is provided atop stop which is simple and inexpensive to fabricate and to assemble onthe fastener stringers. Also, the end stop of the present invention isso constructed and arranged that a greater clinching power or holdingforce is obtained, than in other such stops heretofore suggested andused. My improved top stop is also neat in appearance and permits fullclosing movement of the slider.

While I have shown and described an embodiment which ny invention mayassume in practice, it will be understood that this embodiment is merelyfor the purpose of illustration and description, and thatother forms maybe devised within the scope of my invention as defined in the appendedclaims.

What I claim as my invention is:

1. An end stop for slide fasteners of the class described comprising abody member having a pair of spaced apart oppositely disposed portionsfor engagement with the edge portion of the stringer tape on which it isadapted to be mounted, each of said portions having an aperture arrangedtherein into which the edge portion of the stringer tape is adapted toexpand so as to aid in preventing displacement of the stop from thestringer tapes.

2. An end stop for slide fasteners of the class described comprising abody member having a pair of spaced apart oppositely disposed portionsfor engagement with the edge portion of the stringer tape on which it isadapted to be mounted, each of said portions having a substantiallycircular hole arranged therethrough centrally thereof into which theedge portion of the stringer tape is adapted to expand so as to aid inpreventing displacement of the stop from the stringer tape.

3. An end stop for slide fasteners of the class described comprising abody member having a pair of spaced apart oppositely disposedsubstantially circular portions for engagement with the edge portion ofthe stringer on which it is adapted to be mounted, each of said circularportions having a substantially circular hole arranged therethroughsubstantially concentric therewith into which the edge portion of thestringer tape is adapted to expand so as to aid in preventingdisplacement of the stop from the stringer tape.

4. An end stop for slide fasteners of the class described comprisingsubstantially a U-shaped body member having a pair of spaced-apartoppositely disposed leg portions for engagement with the edge portion ofthe stringer tape on which it is adapted to be mounted, each of said legportions being substantially circular in shape and having a circularaperture arranged therethrough centrally thereof exposing a portion ofthe stringer tape whereby said exposed portion may expand into saidapertures so as to aid in preventin displacement of said stop from thestringer tapes.

ALFRED E. CARLILE.

REFERENCES CITED The following references are of record in the file ofthis patent:

UNITED STATES PATENTS Number Name Date 1,107,262 Callanan Aug. 18, 19141,463,345 Stocks July 31, 1923 2,044,161 Forster June 16, 1936 2,239,202Rendleman Apr. 22, 1941 2,320,566 Carlile June 1, 1943 2,332,923 LahseOct. 26, 1943 Disclaimer v 1 2,460,124.-Azf1-@ TENERS. Patent dated Jan.25, 1949. Disclaimer filed May 12, 1951, by

the assignee, Talon, Inc. Hereby enters this disclaimer to claims 1 and2 of said patent.

[Ofioial- Gazette June 19, 1.951.]

d E. Oarlz'le, Great Neck, N. Y. END STOP FOR SLIDE FAee

